Eugene Robinson: Hillary Clinton continues to be her own worst enemy

This isn't about whether Hillary Clinton wins the Democratic nomination, which is likely. It isn't even about whether she becomes our next president, which she has a better chance of doing than anyone else. It's about basic respect — for us and for the truth.

Why, when she took office as secretary of state, did she decide to route official emails through a server in her suburban New York mansion? There is just one plausible explanation: She wanted control.

Clinton was no stranger to the rules of the federal government. She had to know that if she used a State Department account, her 60,000-plus emails would become part of the official record. She certainly knew, without any doubt, that her political opponents would delight in rummaging through her communications.

But all of that is beside the point. If you accept the job of secretary of state, you inevitably surrender some of your privacy. Any public official's work-related emails are the modern equivalent of the letters, memos and diaries that fill the National Archives.

So I wish Hillary Clinton would be respectful enough to say, "I'm sorry. I was wrong." I wish she wouldn't insult our intelligence by claiming she only did what other secretaries of state had done.

None of her predecessors, after all, went to the trouble and expense of a private email server.

I wish she would explain why, after turning over to the State Department the emails she deemed work-related, she had the server professionally wiped clean.

The explanation that she didn't want people prying into private matters such as "planning for (daughter) Chelsea's wedding ... as well as yoga routines, family vacations, the other things you typically find in inboxes" is unconvincing.

And I wish I could be sure that Clinton is now, finally, doing everything in her power to ensure that any extant emails are turned over to the State and Justice departments. Unfortunately, I can't. She stonewalled for so long — there's no other word for her stance — that recent pledges of openness and cooperation ring hollow.

At present, I have no reason to believe the controversy is enough to derail the Clinton locomotive's grinding progress toward the nomination. She still leads Sen. Bernie Sanders of Vermont by more than 30 points in an average of recent national polls.

If Clinton makes it to the general election, however, she has needlessly handed her Republican opponent a weapon.

Her trustworthiness, as measured by polls, was always a relative weakness. Even if Democrats accept that the email flap is a partisan witch hunt, the GOP nominee will try to persuade independents otherwise.

The legal questions could prove more troubling.

It should come as no surprise to anyone with a brain that the work-related emails of the secretary of state would contain sensitive information. Clinton surrendered more than 30,000 messages to the State Department, and an initial review of just 40 emails revealed two that reportedly should have been deemed top secret.

Unconfirmed reports — and common sense — suggest there are more.

Were the questionable emails sent to her by others, meaning the responsibility to flag them as classified was not hers? Was the information considered secret at the time? Was having these emails on her server — and on a thumb drive in her lawyer's office — at least a technical violation of the law?

Clinton shouldn't have had to answer such questions. It's her own fault that she does.